Fix off-by-one error in encoding.DecodeBytes.
Fix off-by-one error in encoding.DecodeBytes.

The tests check for panic, and it still panics, but it's panicing on the slice
index instead of the "malformed escape" check.

slavau/cockroach,linearb/cockroach,vivekmenezes/cockroach,jamesgraves/cockroach,vivekmenezes/cockroach,yosiat/cockroach,c4pt0r/cockroach,abhishekgahlot/cockroach,ajayaa/cockroach,GokulSrinivas/cockroach,il9ue/cockroach,vivekmenezes/cockroach,jamesgraves/cockroach,yiixiansheng/cockroach,SustainFund/cockroach,SustainFund/cockroach,abhishekgahlot/cockroach,SustainFund/cockroach,mbertschler/cockroach,petermattis/cockroach,vivekmenezes/cockroach,petermattis/cockroach,ajayaa/cockroach,Abioy/cockroach,freakynit/cockroach,marcuswestin/cockroach,petermattis/cockroach,SustainFund/cockroach,yiixiansheng/cockroach,nkhuyu/cockroach,ajayaa/cockroach,jmank88/cockroach,c4pt0r/cockroach,mbertschler/cockroach,arypurnomoz/cockroach,jmank88/cockroach,marcuswestin/cockroach,bg451/cockroach,c4pt0r/cockroach,ngaut/cockroach,sunya123/cockroach,freakynit/cockroach,nkhuyu/cockroach,nieyy/cockroach,mbertschler/cockroach,alunarbeach/cockroach,marcuswestin/cockroach,ajayaa/cockroach,veteranlu/cockroach,mbonaci/cockroach,marcuswestin/cockroach,alunarbeach/cockroach,linearb/cockroach,jmank88/cockroach,il9ue/cockroach,vaibhavarora/cockroach,loucash/cockroach,hassyma/cockroach,cockroachdb/cockroach,alex/cockroach,briceburg/cockroach,marcuswestin/cockroach,jgautheron/cockroach,il9ue/cockroach,XisiHuang/cockroach,maxlang/cockroach,nieyy/cockroach,mbonaci/cockroach,cuongdo/cockroach,cockroachdb/cockroach,jess-edwards/cockroach,nieyy/cockroach,mbonaci/cockroach,linearb/cockroach,mbertschler/cockroach,vaibhavarora/cockroach,GokulSrinivas/cockroach,domluna/cockroach,alex/cockroach,c4pt0r/cockroach,slavau/cockroach,freakynit/cockroach,cuongdo/cockroach,nieyy/cockroach,abhishekgahlot/cockroach,maxlang/cockroach,ngaut/cockroach,abhishekgahlot/cockroach,vivekmenezes/cockroach,cockroachdb/cockroach,jamesgraves/cockroach,chrisseto/cockroach,veteranlu/cockroach,arjun4084346/cockroach,jmank88/cockroach,Abioy/cockroach,paperstreet/cockroach,mbertschler/cockroach,fengshao0907/cockroach,jamesgraves/cockroach,cockroachdb/cockroach,chrisseto/cockroach,bg451/cockroach,arypurnomoz/cockroach,ajayaa/cockroach,hassyma/cockroach,sunya123/cockroach,fengshao0907/cockroach,ngaut/cockroach,mbonaci/cockroach,vaibhavarora/cockroach,yosiat/cockroach,cockroachdb/cockroach,chrisseto/cockroach,jgautheron/cockroach,arjun4084346/cockroach,jgautheron/cockroach,nkhuyu/cockroach,vaibhavarora/cockroach,domluna/cockroach,arjun4084346/cockroach,il9ue/cockroach,jess-edwards/cockroach,domluna/cockroach,iqstack/cockroach,mbonaci/cockroach,fengshao0907/cockroach,maxlang/cockroach,arypurnomoz/cockroach,briceburg/cockroach,vaibhavarora/cockroach,bg451/cockroach,nkhuyu/cockroach,cuongdo/cockroach,nieyy/cockroach,il9ue/cockroach,sunya123/cockroach,c4pt0r/cockroach,veteranlu/cockroach,SustainFund/cockroach,il9ue/cockroach,linearb/cockroach,vivekmenezes/cockroach,veteranlu/cockroach,alex/cockroach,alunarbeach/cockroach,chrisseto/cockroach,jgautheron/cockroach,slavau/cockroach,GokulSrinivas/cockroach,paperstreet/cockroach,jgautheron/cockroach,petermattis/cockroach,abhishekgahlot/cockroach,linearb/cockroach,yosiat/cockroach,veteranlu/cockroach,yiixiansheng/cockroach,domluna/cockroach,cuongdo/cockroach,paperstreet/cockroach,petermattis/cockroach,mbertschler/cockroach,sunya123/cockroach,freakynit/cockroach,sunya123/cockroach,jess-edwards/cockroach,XisiHuang/cockroach,linearb/cockroach,XisiHuang/cockroach,arypurnomoz/cockroach,fengshao0907/cockroach,SustainFund/cockroach,iqstack/cockroach,hassyma/cockroach,nieyy/cockroach,vaibhavarora/cockroach,Abioy/cockroach,vivekmenezes/cockroach,yosiat/cockroach,jamesgraves/cockroach,GokulSrinivas/cockroach,chrisseto/cockroach,glycerine/cockroach,il9ue/cockroach,bg451/cockroach,maxlang/cockroach,jess-edwards/cockroach,nkhuyu/cockroach,bg451/cockroach,glycerine/cockroach,iqstack/cockroach,hassyma/cockroach,domluna/cockroach,ngaut/cockroach,glycerine/cockroach,GokulSrinivas/cockroach,chrisseto/cockroach,ngaut/cockroach,glycerine/cockroach,petermattis/cockroach,c4pt0r/cockroach,fengshao0907/cockroach,maxlang/cockroach,arjun4084346/cockroach,briceburg/cockroach,cockroachdb/cockroach,jmank88/cockroach,freakynit/cockroach,paperstreet/cockroach,iqstack/cockroach,bg451/cockroach,briceburg/cockroach,maxlang/cockroach,hassyma/cockroach,nieyy/cockroach,jgautheron/cockroach,vivekmenezes/cockroach,jamesgraves/cockroach,sunya123/cockroach,sunya123/cockroach,nieyy/cockroach,iqstack/cockroach,freakynit/cockroach,maxlang/cockroach,paperstreet/cockroach,alunarbeach/cockroach,slavau/cockroach,glycerine/cockroach,paperstreet/cockroach,loucash/cockroach,ajayaa/cockroach,marcuswestin/cockroach,alex/cockroach,jess-edwards/cockroach,paperstreet/cockroach,arjun4084346/cockroach,iqstack/cockroach,sunya123/cockroach,cockroachdb/cockroach,loucash/cockroach,GokulSrinivas/cockroach,marcuswestin/cockroach,arjun4084346/cockroach,vaibhavarora/cockroach,bg451/cockroach,jamesgraves/cockroach,slavau/cockroach,ngaut/cockroach,briceburg/cockroach,alunarbeach/cockroach,arjun4084346/cockroach,XisiHuang/cockroach,cuongdo/cockroach,cuongdo/cockroach,loucash/cockroach,mbonaci/cockroach,alex/cockroach,linearb/cockroach,domluna/cockroach,glycerine/cockroach,arjun4084346/cockroach,hassyma/cockroach,alex/cockroach,veteranlu/cockroach,mbertschler/cockroach,yiixiansheng/cockroach,yiixiansheng/cockroach,il9ue/cockroach,Abioy/cockroach,vaibhavarora/cockroach,jess-edwards/cockroach,veteranlu/cockroach,Abioy/cockroach,abhishekgahlot/cockroach,alunarbeach/cockroach,cuongdo/cockroach,XisiHuang/cockroach,maxlang/cockroach,veteranlu/cockroach,loucash/cockroach,glycerine/cockroach,briceburg/cockroach,yiixiansheng/cockroach,petermattis/cockroach,Abioy/cockroach,ngaut/cockroach,cockroachdb/cockroach,arypurnomoz/cockroach,fengshao0907/cockroach,domluna/cockroach,loucash/cockroach,arypurnomoz/cockroach,jess-edwards/cockroach,slavau/cockroach,jmank88/cockroach,nkhuyu/cockroach,jmank88/cockroach,glycerine/cockroach,paperstreet/cockroach,XisiHuang/cockroach,yosiat/cockroach,petermattis/cockroach,cuongdo/cockroach,yosiat/cockroach,marcuswestin/cockroach,iqstack/cockroach